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glspectrumview.cpp
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glspectrumview.cpp
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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// Copyright (C) 2014 John Greb <hexameron@spam.no> //
// Copyright (C) 2015-2023 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// Copyright (C) 2015 Hoernchen <la@tfc-server.de> //
// Copyright (C) 2018 beta-tester <alpha-beta-release@gmx.net> //
// Copyright (C) 2022-2023 Jon Beniston, M7RCE <jon@beniston.com> //
// Copyright (C) 2022 Jiří Pinkava <jiri.pinkava@rossum.ai> //
// Copyright (C) 2023 Arne Jünemann <das-iro@das-iro.de> //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <algorithm>
#include <QMouseEvent>
#include <QOpenGLShaderProgram>
#include <QOpenGLFunctions>
#include <QPainter>
#include <QFontDatabase>
#include <QWindow>
#include <QGestureEvent>
#include <QPanGesture>
#include <QPinchGesture>
#include "maincore.h"
#include "dsp/spectrumvis.h"
#include "gui/glspectrumview.h"
#include "gui/spectrummeasurements.h"
#include "settings/mainsettings.h"
#include "util/messagequeue.h"
#include "util/db.h"
#include "util/profiler.h"
#include <QDebug>
MESSAGE_CLASS_DEFINITION(GLSpectrumView::MsgReportSampleRate, Message)
MESSAGE_CLASS_DEFINITION(GLSpectrumView::MsgReportWaterfallShare, Message)
MESSAGE_CLASS_DEFINITION(GLSpectrumView::MsgReportFFTOverlap, Message)
MESSAGE_CLASS_DEFINITION(GLSpectrumView::MsgReportPowerScale, Message)
MESSAGE_CLASS_DEFINITION(GLSpectrumView::MsgReportCalibrationShift, Message)
MESSAGE_CLASS_DEFINITION(GLSpectrumView::MsgReportHistogramMarkersChange, Message)
MESSAGE_CLASS_DEFINITION(GLSpectrumView::MsgReportWaterfallMarkersChange, Message)
const float GLSpectrumView::m_maxFrequencyZoom = 10.0f;
const float GLSpectrumView::m_annotationMarkerHeight = 20.0f;
GLSpectrumView::GLSpectrumView(QWidget* parent) :
QOpenGLWidget(parent),
m_markersDisplay(SpectrumSettings::MarkersDisplaySpectrum),
m_histogramFindPeaks(false),
m_cursorState(CSNormal),
m_cursorChannel(0),
m_spectrumVis(nullptr),
m_fpsPeriodMs(50),
m_mouseInside(false),
m_changesPending(true),
m_centerFrequency(100000000),
m_referenceLevel(0),
m_powerRange(100),
m_linear(false),
m_decay(1),
m_sampleRate(500000),
m_timingRate(1),
m_fftOverlap(0),
m_fftSize(512),
m_nbBins(512),
m_displayGrid(true),
m_displayGridIntensity(5),
m_displayTraceIntensity(50),
m_invertedWaterfall(true),
m_displayMaxHold(false),
m_currentSpectrum(nullptr),
m_displayCurrent(false),
m_leftMargin(0),
m_rightMargin(0),
m_topMargin(0),
m_frequencyScaleHeight(0),
m_histogramHeight(80),
m_waterfallHeight(0),
m_bottomMargin(0),
m_waterfallBuffer(nullptr),
m_waterfallBufferPos(0),
m_waterfallTextureHeight(-1),
m_waterfallTexturePos(0),
m_displayWaterfall(true),
m_ssbSpectrum(false),
m_lsbDisplay(false),
m_3DSpectrogramBuffer(nullptr),
m_3DSpectrogramBufferPos(0),
m_3DSpectrogramTextureHeight(-1),
m_3DSpectrogramTexturePos(0),
m_display3DSpectrogram(false),
m_rotate3DSpectrogram(false),
m_pan3DSpectrogram(false),
m_scaleZ3DSpectrogram(false),
m_3DSpectrogramStyle(SpectrumSettings::Outline),
m_colorMapName("Angel"),
m_scrollFrequency(false),
m_scrollStartCenterFreq(0),
m_pinching(false),
m_pinching3D(false),
m_frequencyRequested(false),
m_nextFrequencyValid(false),
m_histogramBuffer(nullptr),
m_histogram(nullptr),
m_displayHistogram(true),
m_displayChanged(false),
m_displaySourceOrSink(true),
m_displayStreamIndex(0),
m_matrixLoc(0),
m_colorLoc(0),
m_useCalibration(false),
m_calibrationGain(1.0),
m_calibrationShiftdB(0.0),
m_calibrationInterpMode(SpectrumSettings::CalibInterpLinear),
m_messageQueueToGUI(nullptr),
m_openGLLogger(nullptr),
m_isDeviceSpectrum(false),
m_measurements(nullptr),
m_measurement(SpectrumSettings::MeasurementNone),
m_measurementCenterFrequencyOffset(0),
m_measurementBandwidth(10000),
m_measurementChSpacing(10000),
m_measurementAdjChBandwidth(10000),
m_measurementHarmonics(5),
m_measurementPeaks(5),
m_measurementHighlight(true),
m_measurementPrecision(1)
{
// Enable multisampling anti-aliasing (MSAA)
int multisamples = MainCore::instance()->getSettings().getMultisampling();
if (multisamples > 0)
{
QSurfaceFormat format;
format.setSamples(multisamples);
setFormat(format);
}
setObjectName("GLSpectrum");
setAutoFillBackground(false);
setAttribute(Qt::WA_OpaquePaintEvent, true);
setAttribute(Qt::WA_NoSystemBackground, true);
setMouseTracking(true);
setMinimumSize(360, 200);
m_waterfallShare = 0.5;
for (int i = 0; i <= 239; i++)
{
QColor c;
c.setHsv(239 - i, 255, 15 + i);
((quint8*)&m_waterfallPalette[i])[0] = c.red();
((quint8*)&m_waterfallPalette[i])[1] = c.green();
((quint8*)&m_waterfallPalette[i])[2] = c.blue();
((quint8*)&m_waterfallPalette[i])[3] = c.alpha();
}
m_waterfallPalette[239] = 0xffffffff;
m_histogramPalette[0] = 0;
for (int i = 1; i < 240; i++)
{
QColor c;
int light = i < 60 ? 128 + (60-i) : 128;
int sat = i < 60 ? 140 + i : i < 180 ? 200 : 200 - (i-180);
c.setHsl(239 - i, sat, light);
((quint8*)&m_histogramPalette[i])[0] = c.red();
((quint8*)&m_histogramPalette[i])[1] = c.green();
((quint8*)&m_histogramPalette[i])[2] = c.blue();
((quint8*)&m_histogramPalette[i])[3] = c.alpha();
}
// 4.2.3 palette
// for (int i = 1; i < 240; i++)
// {
// QColor c;
// int val = i < 60 ? 255 : 200;
// int sat = i < 60 ? 128 : i < 180 ? 255 : 180;
// c.setHsv(239 - i, sat, val);
// ((quint8*)&m_histogramPalette[i])[0] = c.red();
// ((quint8*)&m_histogramPalette[i])[1] = c.green();
// ((quint8*)&m_histogramPalette[i])[2] = c.blue();
// ((quint8*)&m_histogramPalette[i])[3] = c.alpha();
// }
// Original palette:
// for(int i = 16; i < 240; i++) {
// QColor c;
// c.setHsv(239 - i, 255 - ((i < 200) ? 0 : (i - 200) * 3), 150 + ((i < 100) ? i : 100));
// ((quint8*)&m_histogramPalette[i])[0] = c.red();
// ((quint8*)&m_histogramPalette[i])[1] = c.green();
// ((quint8*)&m_histogramPalette[i])[2] = c.blue();
// ((quint8*)&m_histogramPalette[i])[3] = c.alpha();
// }
// for(int i = 1; i < 16; i++) {
// QColor c;
// c.setHsv(255, 128, 48 + i * 4);
// ((quint8*)&m_histogramPalette[i])[0] = c.red();
// ((quint8*)&m_histogramPalette[i])[1] = c.green();
// ((quint8*)&m_histogramPalette[i])[2] = c.blue();
// ((quint8*)&m_histogramPalette[i])[3] = c.alpha();
// }
m_decayDivisor = 1;
m_decayDivisorCount = m_decayDivisor;
m_histogramStroke = 30;
m_timeScale.setFont(font());
m_timeScale.setOrientation(Qt::Vertical);
m_timeScale.setRange(Unit::Time, 0, 1);
m_powerScale.setFont(font());
m_powerScale.setOrientation(Qt::Vertical);
m_frequencyScale.setFont(font());
m_frequencyScale.setOrientation(Qt::Horizontal);
m_textOverlayFont = font(); // QFontDatabase::systemFont(QFontDatabase::FixedFont);
m_textOverlayFont.setBold(true);
// m_textOverlayFont.setPointSize(font().pointSize() - 1);
resetFrequencyZoom();
m_timer.setTimerType(Qt::PreciseTimer);
connect(&m_timer, SIGNAL(timeout()), this, SLOT(tick()));
m_timer.start(m_fpsPeriodMs);
// Handle KeyEvents
setFocusPolicy(Qt::StrongFocus);
installEventFilter(this);
grabGesture(Qt::PinchGesture);
}
GLSpectrumView::~GLSpectrumView()
{
QMutexLocker mutexLocker(&m_mutex);
if (m_waterfallBuffer)
{
delete m_waterfallBuffer;
m_waterfallBuffer = nullptr;
}
if (m_3DSpectrogramBuffer)
{
delete m_3DSpectrogramBuffer;
m_3DSpectrogramBuffer = nullptr;
}
if (m_histogramBuffer)
{
delete m_histogramBuffer;
m_histogramBuffer = nullptr;
}
if (m_histogram)
{
delete[] m_histogram;
m_histogram = nullptr;
}
if (m_openGLLogger)
{
delete m_openGLLogger;
m_openGLLogger = nullptr;
}
}
void GLSpectrumView::queueRequestCenterFrequency(qint64 frequency)
{
if (!m_frequencyRequested)
{
m_frequencyRequested = true;
m_requestedFrequency = frequency;
emit requestCenterFrequency(frequency);
}
else
{
m_nextFrequencyValid = true;
m_nextFrequency = frequency;
}
}
void GLSpectrumView::setCenterFrequency(qint64 frequency)
{
m_mutex.lock();
m_centerFrequency = frequency;
// Handle queued frequency requests
if (m_frequencyRequested && (frequency == m_requestedFrequency))
{
m_frequencyRequested = false;
if (m_nextFrequencyValid)
{
m_nextFrequencyValid = false;
queueRequestCenterFrequency(m_nextFrequency);
}
}
if (m_useCalibration) {
updateCalibrationPoints();
}
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setReferenceLevel(Real referenceLevel)
{
m_mutex.lock();
m_referenceLevel = referenceLevel;
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setPowerRange(Real powerRange)
{
m_mutex.lock();
m_powerRange = powerRange;
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setDecay(int decay)
{
m_decay = decay < 0 ? 0 : decay > 20 ? 20 : decay;
}
void GLSpectrumView::setDecayDivisor(int decayDivisor)
{
m_decayDivisor = decayDivisor < 1 ? 1 : decayDivisor > 20 ? 20 : decayDivisor;
}
void GLSpectrumView::setHistoStroke(int stroke)
{
m_histogramStroke = stroke < 1 ? 1 : stroke > 60 ? 60 : stroke;
}
void GLSpectrumView::setSampleRate(qint32 sampleRate)
{
m_mutex.lock();
m_sampleRate = sampleRate;
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(new MsgReportSampleRate(m_sampleRate));
}
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setTimingRate(qint32 timingRate)
{
m_mutex.lock();
m_timingRate = timingRate;
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setFFTOverlap(int overlap)
{
m_mutex.lock();
m_fftOverlap = overlap;
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setDisplayWaterfall(bool display)
{
m_mutex.lock();
m_displayWaterfall = display;
if (!display)
{
m_waterfallMarkers.clear();
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(new MsgReportWaterfallMarkersChange());
}
}
m_changesPending = true;
stopDrag();
m_mutex.unlock();
update();
}
void GLSpectrumView::setDisplay3DSpectrogram(bool display)
{
m_mutex.lock();
m_display3DSpectrogram = display;
m_changesPending = true;
stopDrag();
m_mutex.unlock();
update();
}
void GLSpectrumView::setSpectrumStyle(SpectrumSettings::SpectrumStyle style)
{
m_spectrumStyle = style;
update();
}
void GLSpectrumView::set3DSpectrogramStyle(SpectrumSettings::SpectrogramStyle style)
{
m_3DSpectrogramStyle = style;
update();
}
void GLSpectrumView::setColorMapName(const QString &colorMapName)
{
m_mutex.lock();
m_colorMapName = colorMapName;
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setSsbSpectrum(bool ssbSpectrum)
{
m_ssbSpectrum = ssbSpectrum;
update();
}
void GLSpectrumView::setLsbDisplay(bool lsbDisplay)
{
m_lsbDisplay = lsbDisplay;
update();
}
void GLSpectrumView::setInvertedWaterfall(bool inv)
{
m_mutex.lock();
m_invertedWaterfall = inv;
m_changesPending = true;
stopDrag();
m_mutex.unlock();
update();
}
void GLSpectrumView::setDisplayMaxHold(bool display)
{
m_mutex.lock();
m_displayMaxHold = display;
if (!m_displayMaxHold && !m_displayCurrent && !m_displayHistogram)
{
m_histogramMarkers.clear();
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(new MsgReportHistogramMarkersChange());
}
}
m_changesPending = true;
stopDrag();
m_mutex.unlock();
update();
}
void GLSpectrumView::setDisplayCurrent(bool display)
{
m_mutex.lock();
m_displayCurrent = display;
if (!m_displayMaxHold && !m_displayCurrent && !m_displayHistogram)
{
m_histogramMarkers.clear();
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(new MsgReportHistogramMarkersChange());
}
}
m_changesPending = true;
stopDrag();
m_mutex.unlock();
update();
}
void GLSpectrumView::setDisplayHistogram(bool display)
{
m_mutex.lock();
m_displayHistogram = display;
if (!m_displayMaxHold && !m_displayCurrent && !m_displayHistogram)
{
m_histogramMarkers.clear();
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(new MsgReportHistogramMarkersChange());
}
}
m_changesPending = true;
stopDrag();
m_mutex.unlock();
update();
}
void GLSpectrumView::setDisplayGrid(bool display)
{
m_displayGrid = display;
update();
}
void GLSpectrumView::setDisplayGridIntensity(int intensity)
{
m_displayGridIntensity = intensity;
if (m_displayGridIntensity > 100) {
m_displayGridIntensity = 100;
} else if (m_displayGridIntensity < 0) {
m_displayGridIntensity = 0;
}
update();
}
void GLSpectrumView::setDisplayTraceIntensity(int intensity)
{
m_displayTraceIntensity = intensity;
if (m_displayTraceIntensity > 100) {
m_displayTraceIntensity = 100;
} else if (m_displayTraceIntensity < 0) {
m_displayTraceIntensity = 0;
}
update();
}
void GLSpectrumView::setFreqScaleTruncationMode(bool mode)
{
m_frequencyScale.setTruncateMode(mode);
update();
}
void GLSpectrumView::setLinear(bool linear)
{
m_mutex.lock();
m_linear = linear;
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setUseCalibration(bool useCalibration)
{
m_mutex.lock();
m_useCalibration = useCalibration;
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(new MsgReportCalibrationShift(m_useCalibration ? m_calibrationShiftdB : 0.0));
}
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setMeasurementParams(
SpectrumSettings::Measurement measurement,
int centerFrequencyOffset,
int bandwidth,
int chSpacing,
int adjChBandwidth,
int harmonics,
int peaks,
bool highlight,
int precision
)
{
m_mutex.lock();
m_measurement = measurement;
m_measurementCenterFrequencyOffset = centerFrequencyOffset;
m_measurementBandwidth = bandwidth;
m_measurementChSpacing = chSpacing;
m_measurementAdjChBandwidth = adjChBandwidth;
m_measurementHarmonics = harmonics;
m_measurementPeaks = peaks;
m_measurementHighlight = highlight;
m_measurementPrecision = precision;
m_changesPending = true;
if (m_measurements) {
m_measurements->setMeasurementParams(measurement, peaks, precision);
}
m_mutex.unlock();
update();
}
void GLSpectrumView::addChannelMarker(ChannelMarker* channelMarker)
{
m_mutex.lock();
connect(channelMarker, SIGNAL(changedByAPI()), this, SLOT(channelMarkerChanged()));
connect(channelMarker, SIGNAL(destroyed(QObject*)), this, SLOT(channelMarkerDestroyed(QObject*)));
m_channelMarkerStates.append(new ChannelMarkerState(channelMarker));
m_changesPending = true;
stopDrag();
m_mutex.unlock();
update();
}
void GLSpectrumView::removeChannelMarker(ChannelMarker* channelMarker)
{
m_mutex.lock();
for (int i = 0; i < m_channelMarkerStates.size(); ++i)
{
if (m_channelMarkerStates[i]->m_channelMarker == channelMarker)
{
channelMarker->disconnect(this);
delete m_channelMarkerStates.takeAt(i);
m_changesPending = true;
stopDrag();
m_mutex.unlock();
update();
return;
}
}
m_mutex.unlock();
}
void GLSpectrumView::setHistogramMarkers(const QList<SpectrumHistogramMarker>& histogramMarkers)
{
m_mutex.lock();
m_histogramMarkers = histogramMarkers;
updateHistogramMarkers();
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setWaterfallMarkers(const QList<SpectrumWaterfallMarker>& waterfallMarkers)
{
m_mutex.lock();
m_waterfallMarkers = waterfallMarkers;
updateWaterfallMarkers();
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setAnnotationMarkers(const QList<SpectrumAnnotationMarker>& annotationMarkers)
{
m_mutex.lock();
m_annotationMarkers = annotationMarkers;
updateAnnotationMarkers();
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setMarkersDisplay(SpectrumSettings::MarkersDisplay markersDisplay)
{
m_mutex.lock();
m_markersDisplay = markersDisplay;
updateMarkersDisplay();
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setCalibrationPoints(const QList<SpectrumCalibrationPoint>& calibrationPoints)
{
m_mutex.lock();
m_calibrationPoints = calibrationPoints;
updateCalibrationPoints();
m_changesPending = true;
m_mutex.unlock();
update();
}
void GLSpectrumView::setCalibrationInterpMode(SpectrumSettings::CalibrationInterpolationMode mode)
{
m_mutex.lock();
m_calibrationInterpMode = mode;
updateCalibrationPoints();
m_changesPending = true;
m_mutex.unlock();
update();
}
float GLSpectrumView::getPowerMax() const
{
return m_linear ? m_powerScale.getRangeMax() : CalcDb::powerFromdB(m_powerScale.getRangeMax());
}
float GLSpectrumView::getTimeMax() const
{
return m_timeScale.getRangeMax();
}
void GLSpectrumView::newSpectrum(const Real *spectrum, int nbBins, int fftSize)
{
QMutexLocker mutexLocker(&m_mutex);
m_displayChanged = true;
if (m_changesPending)
{
m_fftSize = fftSize;
m_nbBins = nbBins;
return;
}
if ((fftSize != m_fftSize) || (m_nbBins != nbBins))
{
m_fftSize = fftSize;
m_nbBins = nbBins;
m_changesPending = true;
return;
}
updateWaterfall(spectrum);
update3DSpectrogram(spectrum);
updateHistogram(spectrum);
}
void GLSpectrumView::updateWaterfall(const Real *spectrum)
{
if (m_waterfallBufferPos < m_waterfallBuffer->height())
{
quint32* pix = (quint32*)m_waterfallBuffer->scanLine(m_waterfallBufferPos);
for (int i = 0; i < m_nbBins; i++)
{
int v = (int)((spectrum[i] - m_referenceLevel) * 2.4 * 100.0 / m_powerRange + 240.0);
if (v > 239) {
v = 239;
} else if (v < 0) {
v = 0;
}
*pix++ = m_waterfallPalette[(int)v];
}
m_waterfallBufferPos++;
}
}
void GLSpectrumView::update3DSpectrogram(const Real *spectrum)
{
if (m_3DSpectrogramBufferPos < m_3DSpectrogramBuffer->height())
{
quint8* pix = (quint8*)m_3DSpectrogramBuffer->scanLine(m_3DSpectrogramBufferPos);
for (int i = 0; i < m_nbBins; i++)
{
int v = (int)((spectrum[i] - m_referenceLevel) * 2.4 * 100.0 / m_powerRange + 240.0);
if (v > 255) {
v = 255;
} else if (v < 0) {
v = 0;
}
*pix++ = v;
}
m_3DSpectrogramBufferPos++;
}
}
void GLSpectrumView::updateHistogram(const Real *spectrum)
{
quint8* b = m_histogram;
int fftMulSize = 100 * m_nbBins;
if ((m_displayHistogram || m_displayMaxHold) && (m_decay != 0))
{
m_decayDivisorCount--;
if ((m_decay > 1) || (m_decayDivisorCount <= 0))
{
for (int i = 0; i < fftMulSize; i++)
{
if (*b > m_decay) {
*b = *b - m_decay;
} else {
*b = 0;
}
b++;
}
m_decayDivisorCount = m_decayDivisor;
}
}
m_currentSpectrum = spectrum; // Store spectrum for current spectrum line display
#if 0 //def USE_SSE2
if(m_decay >= 0) { // normal
const __m128 refl = {m_referenceLevel, m_referenceLevel, m_referenceLevel, m_referenceLevel};
const __m128 power = {m_powerRange, m_powerRange, m_powerRange, m_powerRange};
const __m128 mul = {100.0f, 100.0f, 100.0f, 100.0f};
for(int i = 0; i < m_fftSize; i += 4) {
__m128 abc = _mm_loadu_ps (&spectrum[i]);
abc = _mm_sub_ps(abc, refl);
abc = _mm_mul_ps(abc, mul);
abc = _mm_div_ps(abc, power);
abc = _mm_add_ps(abc, mul);
__m128i result = _mm_cvtps_epi32(abc);
for(int j = 0; j < 4; j++) {
int v = ((int*)&result)[j];
if((v >= 0) && (v <= 99)) {
b = m_histogram + (i + j) * 100 + v;
if(*b < 220)
*b += m_histogramStroke; // was 4
else if(*b < 239)
*b += 1;
}
}
}
} else { // draw double pixels
int add = -m_decay * 4;
const __m128 refl = {m_referenceLevel, m_referenceLevel, m_referenceLevel, m_referenceLevel};
const __m128 power = {m_powerRange, m_powerRange, m_powerRange, m_powerRange};
const __m128 mul = {100.0f, 100.0f, 100.0f, 100.0f};
for(int i = 0; i < m_fftSize; i += 4) {
__m128 abc = _mm_loadu_ps (&spectrum[i]);
abc = _mm_sub_ps(abc, refl);
abc = _mm_mul_ps(abc, mul);
abc = _mm_div_ps(abc, power);
abc = _mm_add_ps(abc, mul);
__m128i result = _mm_cvtps_epi32(abc);
for(int j = 0; j < 4; j++) {
int v = ((int*)&result)[j];
if((v >= 1) && (v <= 98)) {
b = m_histogram + (i + j) * 100 + v;
if(b[-1] < 220)
b[-1] += add;
else if(b[-1] < 239)
b[-1] += 1;
if(b[0] < 220)
b[0] += add;
else if(b[0] < 239)
b[0] += 1;
if(b[1] < 220)
b[1] += add;
else if(b[1] < 239)
b[1] += 1;
} else if((v >= 0) && (v <= 99)) {
b = m_histogram + (i + j) * 100 + v;
if(*b < 220)
*b += add;
else if(*b < 239)
*b += 1;
}
}
}
}
#else
for (int i = 0; i < m_nbBins; i++)
{
int v = (int)((spectrum[i] - m_referenceLevel) * 100.0 / m_powerRange + 100.0);
if ((v >= 0) && (v <= 99))
{
b = m_histogram + i * 100 + v;
// capping to 239 as palette values are [0..239]
if (*b + m_histogramStroke <= 239) {
*b += m_histogramStroke; // was 4
} else {
*b = 239;
}
}
}
#endif
}
void GLSpectrumView::initializeGL()
{
QOpenGLContext *glCurrentContext = QOpenGLContext::currentContext();
int majorVersion = 0;
int minorVersion = 0;
if (glCurrentContext)
{
if (QOpenGLContext::currentContext()->isValid())
{
qDebug() << "GLSpectrumView::initializeGL: context:"
<< " major: " << (QOpenGLContext::currentContext()->format()).majorVersion()
<< " minor: " << (QOpenGLContext::currentContext()->format()).minorVersion()
<< " ES: " << (QOpenGLContext::currentContext()->isOpenGLES() ? "yes" : "no");
majorVersion = (QOpenGLContext::currentContext()->format()).majorVersion();
minorVersion = (QOpenGLContext::currentContext()->format()).minorVersion();
}
else {
qDebug() << "GLSpectrumView::initializeGL: current context is invalid";
}
// Enable OpenGL debugging
// Disable for release, as some OpenGL drivers are quite verbose and output
// info on every frame
if (false)
{
QSurfaceFormat format = glCurrentContext->format();
format.setOption(QSurfaceFormat::DebugContext);
glCurrentContext->setFormat(format);
if (glCurrentContext->hasExtension(QByteArrayLiteral("GL_KHR_debug")))
{
m_openGLLogger = new QOpenGLDebugLogger(this);
m_openGLLogger->initialize();
connect(m_openGLLogger, &QOpenGLDebugLogger::messageLogged, this, &GLSpectrumView::openGLDebug);
m_openGLLogger->startLogging(QOpenGLDebugLogger::SynchronousLogging);
}
else
{
qDebug() << "GLSpectrumView::initializeGL: GL_KHR_debug not available";
}
}
}
else
{
qCritical() << "GLSpectrumView::initializeGL: no current context";
return;
}
QOpenGLFunctions *glFunctions = QOpenGLContext::currentContext()->functions();
glFunctions->initializeOpenGLFunctions();
//glDisable(GL_DEPTH_TEST);
m_glShaderSimple.initializeGL(majorVersion, minorVersion);
m_glShaderLeftScale.initializeGL(majorVersion, minorVersion);
m_glShaderFrequencyScale.initializeGL(majorVersion, minorVersion);
m_glShaderWaterfall.initializeGL(majorVersion, minorVersion);
m_glShaderHistogram.initializeGL(majorVersion, minorVersion);
m_glShaderColorMap.initializeGL(majorVersion, minorVersion);
m_glShaderTextOverlay.initializeGL(majorVersion, minorVersion);
m_glShaderInfo.initializeGL(majorVersion, minorVersion);
m_glShaderSpectrogram.initializeGL(majorVersion, minorVersion);
m_glShaderSpectrogramTimeScale.initializeGL(majorVersion, minorVersion);
m_glShaderSpectrogramPowerScale.initializeGL(majorVersion, minorVersion);
}
void GLSpectrumView::openGLDebug(const QOpenGLDebugMessage &debugMessage)
{
qDebug() << "GLSpectrumView::openGLDebug: " << debugMessage;
}
void GLSpectrumView::resizeGL(int width, int height)
{
QMutexLocker mutexLocker(&m_mutex);
QOpenGLFunctions *glFunctions = QOpenGLContext::currentContext()->functions();
glFunctions->glViewport(0, 0, width, height);
m_changesPending = true;
}
void GLSpectrumView::clearSpectrumHistogram()
{
if (!m_mutex.tryLock(2)) {
return;
}
memset(m_histogram, 0x00, 100 * m_nbBins);
m_mutex.unlock();
update();
}
void GLSpectrumView::paintGL()
{
PROFILER_START()
if (!m_mutex.tryLock(2)) {
return;
}
if (m_changesPending)
{
applyChanges();
m_changesPending = false;
}
if (m_nbBins <= 0)
{
m_mutex.unlock();
return;
}
QOpenGLFunctions *glFunctions = QOpenGLContext::currentContext()->functions();
glFunctions->glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glFunctions->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
QMatrix4x4 spectrogramGridMatrix;
float devicePixelRatio;